Spraying-machine for can ends and similar articles.



AP'PLICATION FILED JUNE 3.19m.

Patented Oct. 15, 191% 5 m Q m M: M 1 MM m M W 1 W M ha ,1 m1 .WQN WJ T Q a m v & aw MM 4 QM {my MN $3 a N s c. w. GRAHAM. SPRAYING MACHINE FOR CAN ENDS AND SINHLAR ARTKiLES.

APPLICATWN FILED JUNE 3.1912.

Patente m 15, 1918.

3 SHEETS-SHEET 2.

c; w. GRAHAM. SPRMINGA MAC HWE {0R QM! ENDS AND SWHLAR ARTICLES.

1 I APPucAhoN FILED mm 3.19:2. 1,1

Patented Oct. 15, 1918.

3 SHEETS SHEET 6542*[65 Wgfwm I CHARLES VI. GRAHAM, 5335 HE? YQRK, N. 35., ASSIGNOR TO AILQERIOAN CAN CGMPANY, OF NEW YORK, 12%. Y., l CUBPQBATEON GE NEW JERSEY..

SPRAYING-MACHINE FOR DAN AND SEMILAB .AELTICLES.

1,281 ,lslt

Specification of Letters Eatent.

Patented @ct. is, 1 1918.

Application filed June 3, 1912. Serial No. 761,132.

ends or other articles, although, as will be evident to those skilled in theart, the machine may be adapted for inany other uses. The object of the invention is to provide a machine capable of automatically treating can heads or other articles at a high rate of speed, and in which a single spraying device is used for coating articles on two conveyers, thereby obtaining the maximum use nnd efficiency from the sprayer and obviating the necessity for duplicating this part of the mechanism.

Another object of the invention 18 to so arrange the elements that a station is provided between the point Where the articles are supplied or fed to the machine and the place Where the articles are coated ortreated, whereby an operator may observe the articles after they have been placed on the conveyer and inspect the same to see it they have been properly placed on the conveyer.

My invention furthermore consists in the improvements in the parts and devices and in the novel combinations of" parts and devices herein shown, described or claimed.

One form of the invention which I have shown as embodying my improvements, consists of a framework adapted to suitably support the various devices, driving mecha-' nism, a pair of alternately, intermittently movable belts or conveyers, two sets of can head .or other article feeding devices for supplying or placing the articles on the conveyers, a single set of spraying or coat-- ing devices adapted to alternately spray the articles on first one of the conveyors and then on the other; drying conveyers to receive the can heads or other articles from the first named conveyers after the articles have been treated, and suitable mechanism for automatically operating the conveyers,

, feeders and sprayer at proper intervals In the drawing iorming a part of this specification, Figure l is a plan view of a machine embodying my improvements, the tank being removed to more clearly illus trate the pests. Fig. 2 is an end view of the structure shownin Fig. 1. Fig. 3 is a sectional view, taken on the line 33 of Big. 1. Fig. 4 is a sectional view, taken on the line H oi? Fig. i. Fig. 5 is an'endview or the machine, taken at the opposite end to that shown in Fig. 2, and Figs. 6, 'Z, 8 and 9 are detail views, upon enlarged scales, of the article feeding device, the valve mechanism, spraying nozzle and the air controlling valve, respectively.

In the drawings, 10 denotes the frame adapted to suitably support the various parts of the mechanism, and over which runs a pair of parallelly arrangedendl'ess eonveyers- A, A, over 'each of which at the front end of the machine is placed a set of can head or other Zirticle feedingdevices B, B, and toward the rear of the machine is located a. spraying device C, the same being adapted to. cooperate alternately with the articles on-eachof the conveyers A, A, and,

as will be noticed irom Fig. 1, a space is provided between the feeding devices B and the spraying ,device C, where the operator may observe the articles which have been placed upon the con'veyers. Each of the conveyors runs over suitable pulleys pro videdon the machine, and is driven alternately and intermittently by the following mechanism: a power driving shaft 11' is mounted at the front end of the machine and is driven from any suitable source of power, as by meansof a pulley 153, and has keyed thereto a wide gear 13 with. which meshes a narrow goal-'14, the latter being provided with a hub 15 having clutch faces 16 on each end thereof, said 14 being loosely and slidably mounted on a supporting shaft 17. Each of the pulleys at this end of the machine which supp urt and drive the conveyers A, A, is loosely mounted on the. shaft 17 and is provided with a clutch face 18 adapted to coiiperate with its cor responding clutch face 16. Each of. the conveyers A, A is provided with a plurality ofspaced trips or cams l9, thesame being so arranged that they engage alternately, opposite ends of a slide bar 20 ,and push the latter alternately from one side to the other. Pivoted to-this slide bar-p20 is a le'ye'i' Q menses 2.1, having pivoted at its opposite end a shipper lever 22, having forked arms 23, 2 3, which engage the gear 14, and as Wlll' be obvious, shift the latter so as to engage alternately the .clutch faces l8, 18. The slide bar is provided at each end thereof with a pivoted member 24, in order to allow the ends of the bar to clear a trip or, cam 19 on one conveyor when the bar is operated from a trip or cam on the opposite conveyor.

in order to retain the gear 1,4 and the clutch faces 16, 16 connected therewith in proper position after the shitting operation has; taken place, I mount a spring pressed pin 1 in the end of the machine, and provide the latter-with a beveled end adapted to cooperate with a V-shaped ring 26 formed on the hub 15.'. u v Each set 05 feeding devices B is operated at the proper time by means of the trips,

or cams 19 by a-reciprocating slide 2'? having a roller at the end thereof adapted to be engaged by the trips or cams, and having p1votedthereto at its opposite end a bell crank 28, the latter being connected by means of a link-.29 to a common connecting rod 30, pivotally secured to a plurality of lever armslief each of the feeding mechanisms, the, bai30 having secured thereto at one lever arm- 31 is formed integral with the disk 3st, and as will be obvious, each time the latter is oscillated, the fingers will be moved'in and out alternately and will alternately support the stack of can heads or other articles and cut out the bottommost article at each complete oscillation of the I disk 34.

After thearticles have been discharged from the feed devices B onto the chucks 3"? ofthe conveyor, the articles are next transferred to a position beneath the spraying or coating device v(I. The latter com prises a plurality of spraying heads 38, 38, the number of said heads corresponding to the number of articles fed by the feed devices B, and each of said heads 38 comprises a cylindrical portion 3!). provided with an inwardly extending nozzle 4-0, the latter having; a plurality of radially arranged perforations 41 'through which the lacquer or other liquid is adapted to be projected, and the cylindrical. member 391s preferably provided with a plurality of plugs 42, by means of I which access may be had to'the perforations 41 to clean the same if necessary. Each of the spraying heads is also provided with an air pipe d3, the same terminating slightly above the perforation l1, and as \vill'be obvious, is adapted to scatter or spread the liquid as the same comes through the perforations 41. Each of the spraying nozzles is also connected to a supply tank 44, as by means of a flexible tube 4:5, and each of the air pipes 43 connects at its top with a common air distributingpipe 46, the latter at one end being connected as by means of a flexible tube t7, with. any suitable source of supply of compressed air. The spraying nozzles or coating devices 38 are mounted .on apair of oscillating arms 48,,the latter being secured to a rock shaft 49 and operated by means of a segmental gear 50, which coiipera'tes with a similar segmental gear 51, the latter beingoperated from a camdisk 52 secured to a longitudinally arranged shaft 53, having a bevel gear 54 at one end thereof, meshing with a corresponding bevel gear- 55 secured tothe end of the power shaft 11. The cam on. the cam disk 52 is so arranged that the spraying devices'are moved alternately from one side of the ma-, 4

chine to the other and have a period of rest at theend of eachi inovement' or oscillation oi the spraying devices in order to allow or spray the articles beingtreate In the supply tank 44 is mounted 'a rethe latter sufiicient time in which to coat oiprocating slide valve 56 (see Fig.7 which is provided with a plurality of perforations 57 adapted to register with the topsofthe pipesef Said valve 56 is operated from one side to the other by means of a pair of levers 58, 58 the latter being keyed to the upper ends of rock shafts 59, 59, which are rocked alternately by means of arms 60, 60, secured thereto at their lower ends, said arms 60, 60 being moved or rocked by means of the trips or cams 19, 19. The slide valve 56 is so operated that the perforations "57 therein are moved first from one side of the tops of the pipes 45 to the other, and the liqu d s supplied .to the spraying noizles during the period when the perforations in the tops of the pipes register.

In order to regulate the flow of the compressed air to the nozzles 38, 38, a valve is placed in the supply pipe 47 and is oper-. ated by means of a lever arm 61, havin pivotally connected thereto a, link 62, the latter being pivoted to one arm of a bell crank 63, and the opposite end of which is operated as by means of cams 64 on the end of one of the levers 48. A spring 65 also provided for returning the valve controlling mechanisr'n to its normal position during the time that the spraying device C is being moved from one side of the machine riser to the other. After the articles have been coated or sprayed, the conveyersare again operated and the articles dropped from the conveyers A, A, at the end of the machine to dryingconveyers 13,1), which transfer the treated articles to a drying oven'or other suitable mechanism, asdesired.

The operation is as follows: Only one of the conveyors A, A moves at a time, and

While this conveyer is moving, one of the 'trips or cams it engages the end of the sliding bar 27 and operates to feed the articles to'the other conveyor, which at the time, is

' stationary. As the conveyor moves, the same conveyer to the conveyor which is now movv ing preparatory to spraying the articles on the moving; conveys! when the latter is brought to rest. At this time another cam or trip 19 operatesthe slide bar 20 and the shifting mechanism for the gear and hrin s the moving conveyor to rest, and starts t is opposite conveyer into motion. In this way vthe two conveyors and" the various mechanisms are operated intermittently and, alternately so long as the power shaft 11 is in motion.

As will be apparent to those skilled in the art, many changes may be'made in the various parts and details of the machine Without departing from the spirit of the invention, such, forvinstance, as the substitution of difierent types of can head or other article feeding devices for those which I have shown and described, and also the substitution of other formsof sprayersconveyersand driv 1ng mechamsms and all such changes and variations are contemplated as fall Within. the scope or the claims appended hereto.

I claims y I I 1, In a machine for coating articles, in combination: a contimfously operating driving mechanism, conveyers having means for holding said articles and adapted each to he ve intermittent movement-alternating with the similar movement of the other conveyer; means whereby each conveyer causes the other conveyor to be connected with said driving mechanism and causes itself to be disconnected; automatic means actuated from said ,(l'rlvgng ,Inechamsm for feeding said articles to the conveyors, said feeding mechanism for one conveyer being operative when the feeding mechanism for the other conveyer is inoperative; and means for cosh ingsaid articles.

a 2, In a machine of the character described.

in combination, intermittently, movable conveyors, a set of article feeding mechanisms comprising a plurality of members each adapted to feed an article, one at a time, and means for treating the articles, said means being movable alternately from a position over one of said (2 vcyers to a position. over the other.

3. In a machine of the class described, in combination, a frame, conveyers mounted thereon, article feeding devices and means for coating the articles, said means being movable alternately to a position adjacent each other of said conveyors.

4-. In a machine of the character described, in combination: a pair of parallelly arranged alternately, intermittently movable conveyers; a battery of article feeding devices located above each. of said conveyors; and means for automatically operating each battery of said devices, the means for operating one set of devices being actuated by the ccnveyerover'which the other battery of said devices is located, substantially as specified.

5. In a machine of the class described, in combination a pair of endless conveyer belts having alternately intermittent movement, article feeding devices for each ofsaid conveyers and means for spraying the articles on the conveyers, said means comprising a plurality of spraying'nozzles movable from a position overone of the conveyors to a position over the other of the conveyors, each of said nozzles bein provided with a pipe connection to a supp y tank, and auto matically operated valve mechanism for regulating the supply to the nozzles.

' 8. In a n'lachine of the character described, in combination: two spaced, movableconr veyers each adapted to convey can ends or i like articles; and a spraying device movable alternately to operative position adjacent each of said conveyors whereby ,the'same spraying device is adapted to treat all the articles on both conveyors, substantially specified.

71' in a machine of the character described, in combination: two spaced, alternately, intermittently movable onvcyers adapted to carry-can ends thereon; and a spraying de vice moi'able alternately to operative position adjacent each of said conveyors, the spraying device being brought to operative position adjacent a conveyor during a period of rest thereof, substantially as specified.

8. in a machine for coating can heads. in combination: an endless conveyer arranged 'to hold at intervals a predetermined number of successive can heads; means for actuat ing: the conveyer intermittently for a distance equal to that occupied by said predetermined number of successive can heads; means for feeding such number can heads at one tinie to the conveyor while it is at rest: means for coating said number of can heads at one time While the conveyer is at rest, the coating means being arranged at a distance from the feeding means a space equal to said number of can heads, whereby an intermediate observing station is provided where the can heads to be treated may be observed Whileat rest; means for actuating -said feeding means intermittently and while the conveyer is at rest; and devices for causing the operation of the coating means intermittently and While the conveyer is at rest.

9. In a-machine coating can heads, in combination: endless conveyers arranged side by side and each adapted to hold at in-' tervals a predetermined number of successive can heads; feeding means for each conveyer, for feeding such predetermined number of can heads at one time to the conveyor ,Wllll8 it is at rest; coating means for coatalternately cause the actuation of each other ing the said number of can heads at one time on each conveyer While the conveyor 1s at rest and means whereby the conveyers intermittently and the intermittent opera tion of the feeding and coating means.

10. In a machine for coating can heads, in combination: carriers-arranged side by side andhaving means for holding articles to be coated; coatingdevices arranged to act al-, ternately first on the articles held onvone of the said arriersand th n on the aarticles held on the other of..the--sa1d"carriers; means for supplying the coating devices with coatmg to be applied to the said articles; means orshifting the coating devices from one carrier to the other; and means whereby the carriers are actuated intermittently and alternately. v

11. In a machine for coating can heads, in combination: carriers arranged side by side and having means for holding articles to be coated coating devices arranged to' act alternately first on thearticles held on one of the said carriers and then on the articles held on the other of the said carriers; means for. supplying the coating devices with coating to be applied to the said articles; means for shifting the coating devices from one a carrier tofthe other; and means whereby the carriers are actuatedintermittently and-a1- ternately; each carrier-being provided. with means ivhereby it causes the actuation and advance of the other carrier at a )redeteranined time and for a-predetern'i ied dis tance.

12. In a machine for coating can heads, in combination: carriers arranged side by side and having means for holding articles to be coated; coating devices arranged to act on the said articles; a coating supply arranged to feed coating to said devices; article feeders arranged to feed articles first to one carrier and then to the other; means for actu-' ating tl ersaid carriers intermittently and alternatiy means. for causmg a correspondthan the ing intermittent and alternate operation of the article feeders; and means for causing. the intermittent delivery of coating firstrto the articles on one conveyor and then to the articles on the other conveyor, each conveyor being advanced in the interval when the coating is not being delivered; the coating means being movable from one conveyer to the other. .13. In a machine for coating can heads, in comb1nat1on: carriers arranged side by side and having means for holding articles to be coated; coating devices arranged to act on the said articles; a coating supply arranged 4 ers arranged to feed articles first to one car; rier and then to the other; means for actu? atingthcsaid carriers intermittently and alternately; means for causing a correspond-.

ing intermittentand alternate operation of the article feeders; and means forcauslng the intermittent delivery of coating firsttto the articles on one conveyor and then to the articles on the other conveyer, each conveyor being advanced in the interval when the coating is not bein delivered; the coating means'being movab e from one conveyer to the other; and the flow of coating being con-- a trolled by such movement.

14. In a machine for coating can heads, in combination: an endless conveyor arranged to hold at intervals a predetermined number of successive can heads; means for actuating the conveyor intermittently for a distance equal to that occupied by said predetermined number 0t successive can heads; means for feeding such number of can heads at one time to the, conveyer while it isat rest; means for coating said number of can heads at one time While the conveyer is at rest,

the coating means being arranged at a distance from the feeding means a spacetequal to said number of can heads, whereby an ing termediate observing station is provided? Where the can heads to be treated may be observed While at rest; the said coating means being'movablc to operating position when the conveyer is at rest, and the flow of coating being controlled by such movement.

combination: conveyers having alternate intermittent movement for a distance greater 15. In a machine for coating articles, in

space occupied by one article, so

and means for treating conveyers whereby fpr said crmvcyers arranged to give them the sew mm'emem, means fez piacmg ccnveyers, and means ehifv $0 the other for erticies on said aide frame we conveyez' treating said eeiiiciee. ii. In a maei'zine ifxe character deeeribefi, in'ccmbinetien: a pair cf ccnveyei'e miternateiy and intermittently movebie; means ehifee'hle from we conveyex" is she e'iaer fur teeming articles an send. coiweyez and a dzivizlg mecifmlism for said cmweyers, said mechanism including shiftebic meene adapted to aiz'c-"mte and cperetiveiy ewe i-he can-we with said drivingmechenism.

18, L amechiw f0? Q efiien: 621?.1918 having means for fielding an coated, devices emenge coating is not being the seid a-i'ticlee, a coat ihg silpply shiftable I ing? the said cai'z'ieri; inizermittently and alternately, means for causingze-correspon mg inicez ittem enci eleernate operation of the article feeders, and means fer causing ihe intermittent delivery of waiting firs: w the articles on one conveyer ami then to the articles creche oili'aer conveyer, each com/eye! being admnced in the interval when the delivered.

QHARLES W. GRAHAM.

Witneeees 3V 1). Fcemxz, WALTER HENRY.

articles first he one car-. 

